Leng ruoxue didn't think that there was anything to hide.
Who said that it was embarrassing for a beast to lose two cubs? This was obviously an excuse the snow fox King made for itself. In her opinion, with the snow fox King's beast-like character, the death of the two little purple-eyed snow foxes might have been its doing!
From what she knew, the purple-eyed snow fox was the natural King of the Snow fox Tribe and even the entire Fox Tribe. Based on her understanding of this old Fox's character, she did not believe that this old fellow would tolerate the existence of an opponent who threatened his power. During its rule over the snow fox Tribe, if a purple-eyed snow fox was born, it would not live for long.
This also explained why the two purple eyed snow foxes that were born in the snow fox Tribe did not survive.
Congenital deficiency?